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<!DOCTYPE html> <html lang="en"> <head> <title>Figure 7 from </title> <meta name="description" content="Paschen β emission line of V1391 Cas in our spectra (thin green line). The observed emission peak is at 12,821.64 Å in the heliocentric reference frame. The thick red dotted line represents a Gaussian profile with FWHM = 850 km s−1 (assuming a nova system velocity of 0 km s−1), combined with a narrower absorption feature at –160 km s−1 relative to the center wavelength of this emission. The thin dashed line is without the narrower absorption feature. Since the wavelengths near the Pa-β emission are mostly free from telluric absorption lines, the small absorption superimposed on the broad emission is not an artifact."> <meta charset="UTF-8"> <link rel="stylesheet" media="screen" href="/assets/stylesheets/bootstrap/bootstrap.css"> <link rel="stylesheet" media="screen" href="/assets/stylesheets/jquery-ui.css"> <link rel="stylesheet" media="screen" href="/assets/stylesheets/jquery.mCustomScrollbar.css"> <link rel="stylesheet" media="screen" href="/assets/stylesheets/main.css"> <link rel="stylesheet" media="screen" href="/assets/stylesheets/responsive.css"> <link rel="shortcut icon" type="image/png" href="/assets/images/favicon.ico"> <script src="/assets/javascripts/libs/mathjax.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/base64.min.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/jquery-2.0.3.min.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/bootstrap.min.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/jquery-ui.min.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/underscore.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/backbone.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/jquery.hoverIntent.min.js" type="text/javascript"></script> <script src="/assets/javascripts/libs/jquery.mCustomScrollbar.concat.min.js" type="text/javascript"></script> <script src="/assets/javascripts/utils/StartApp.js" type="text/javascript"></script> <script src="/assets/javascripts/routers/AppRouter.js" type="text/javascript"></script> <script src="/assets/javascripts/models/AbstractModel.js" type="text/javascript"></script> <script src="/assets/javascripts/models/ParamsModel.js" type="text/javascript"></script> <script src="/assets/javascripts/models/StateModel.js" type="text/javascript"></script> <script src="/assets/javascripts/models/FeedbackModel.js" type="text/javascript"></script> <script src="/assets/javascripts/models/QuestionModel.js" type="text/javascript"></script> <script src="/assets/javascripts/models/ProviderModel.js" type="text/javascript"></script> <script src="/assets/javascripts/views/AIEDialogView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/MainView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/FeedbackView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/ImageWidgetView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/HeaderView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/AnnouncementView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/InfoView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/DetailsView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/GridView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/SearchView.js" type="text/javascript"></script> <script src="/assets/javascripts/views/SearchParamsView.js" type="text/javascript"></script> <script type="text/javascript" src="https://s7.addthis.com/js/300/addthis_widget.js"></script> <script> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','//www.google-analytics.com/analytics.js','ga'); 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Lyke</li> </ul> <p id="image-citation"> Hideyo Kawakita and James E. Lyke <em></em> 2024 <em>The Astronomical Journal</em> <b>168</b> <span>.</span> </p> <ul class="unstyled"> <li id="image-provider"><span class="muted">Provider: </span>AAS Journals</li> </ul> </div> </div> <a id="caption-focus" class="anchor"></a> <div class="row-fluid"> <div class="span20"> <div id="image-figure"><strong><p>Caption: Figure 7.</p></strong></div> <div id="image-caption"> <p>Paschen <em>β</em> emission line of V1391 Cas in our spectra (thin green line). The observed emission peak is at 12,821.64 Å in the heliocentric reference frame. The thick red dotted line represents a Gaussian profile with FWHM = 850 km s<sup>−1</sup> (assuming a nova system velocity of 0 km s<sup>−1</sup>), combined with a narrower absorption feature at –160 km s<sup>−1</sup> relative to the center wavelength of this emission. The thin dashed line is without the narrower absorption feature. Since the wavelengths near the Pa-<em>β</em> emission are mostly free from telluric absorption lines, the small absorption superimposed on the broad emission is not an artifact.</p> </div> </div> </div> <a id="article-images-focus" class="anchor"></a> <div class="row-fluid"> <div class="span20" id="articleImagesContainer"> <h5>Other Images in This Article</h5> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f1" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f1_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f2" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f2_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f3" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f3_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f4" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f4_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f5" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f5_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f6" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f6_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f8" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f8_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f9" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f9_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f10" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f10_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> <div class="image-container"> <div class="thumbnail-container"> <a href="/details/ajad79f3f11" data-route="1" data-name="detailsUrl"> <img src="https://s3.amazonaws.com/aasie/images/0004-6256/168/6/null/ajad79f3f11_tb.jpg" class="image" alt="Image in this article"> </a> </div> </div> </div> </div> <a id="copyrights-focus" class="anchor"></a> <div class="row-fluid"> <div class="span20"> <h5> Copyright and Terms & Conditions </h5> <p id="image_copyright"> © 2024. 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